NNK Enhances Cell Migration through α7-nicotinic Acetylcholine Receptor Accompanied by Increased of Fibronectin Expression in Gastric Cancer

被引：27
作者：
Wang, Weu [1 ,2 ,3 ]
Chin-Sheng, Hung [1 ,2 ,3 ,4 ]
Kuo, Li-Jen [1 ,2 ,3 ,4 ]
Wei, Po-Li [1 ,2 ,3 ,4 ,5 ]
Lien, Yung-Chang [2 ,3 ]
Lin, Feng-Yen [6 ,7 ]
Liu, Hui-Hsiung [8 ]
Ho, Yuan-Soon [5 ,9 ,10 ]
Wu, Chih-Hsiung [1 ,2 ,3 ,11 ]
Chang, Yu-Jia [1 ,2 ,3 ,4 ]
机构：
[1] Taipei Med Univ, Coll Med, Grad Inst Clin Med, Taipei, Taiwan
[2] Taipei Med Univ, Coll Med, Sch Med, Dept Surg, Taipei, Taiwan
[3] Taipei Med Univ, Taipei Med Univ Hosp, Dept Surg, Div Gen Surg, Taipei, Taiwan
[4] Taipei Med Univ, Taipei Med Univ Hosp, Ctr Canc, Taipei, Taiwan
[5] Taipei Med Univ, Ctr Excellence Canc Res, Taipei, Taiwan
[6] Taipei Med Univ, Coll Med, Sch Med, Dept Internal Med, Taipei, Taiwan
[7] Taipei Med Univ Hosp, Div Cardiol, Taipei, Taiwan
[8] Taipei Med Univ, Sch Publ Hlth, Dept Publ Hlth, Taipei, Taiwan
[9] Taipei Med Univ, Coll Med Sci & Technol, Sch Med Lab Sci & Biotechnol, Taipei, Taiwan
[10] Taipei Med Univ, Coll Med, Grad Inst Med Sci, Taipei, Taiwan
[11] Taipei Med Univ, Shuang Ho Hosp, Dept Surg, Div Gen Surg, Taipei, Taiwan
来源：
ANNALS OF SURGICAL ONCOLOGY | 2012年 / 19卷
关键词：
LUNG-CANCER; CYCLOOXYGENASE-2; GROWTH; NICOTINE; RISK; NITROSAMINES; EPIDEMIOLOGY; CARCINOGENS; LIGANDS; HIV-1;
D O I：
10.1245/s10434-011-2064-x
中图分类号：
R73 [肿瘤学];
学科分类号：
100214 ;
摘要：
Background. In this study, we intended to dissect the mechanism of 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK)-enhanced migration of gastric cancer. Smoking has been defined as a risk factor for gastric cancer. Tobacco-specific carcinogen, NNK, was reported to enhance cancer progression in gastric cancer. Currently, metastasis is the major issue for clinical cancer therapy, but the influence of NNK on the migration of gastric cancer remains to be determined. Methods. The expression of nicotinic receptor in gastric cancer cells was identified by real-time polymerase chain reaction and Western blotting. The influence of NNK on migration of gastric cancer cells was evaluated by the transwell migration assay system. Receptor-mediated migration was studied by both inhibitor and small interfering RNA. Results. Alpha7 nicotinic acetylcholine receptor, alpha7-nicotinic acetylcholine receptor (nAChR), was identified higher than alpha9-nAChR in gastric cancer cell lines, AGS cells. NNK enhanced significantly gastric cancer cell migration in transwell assay. We used inhibitor and siRNA to demonstrate that alpha7-nAChR mediated NNK-enhanced gastric cancer cell migration and upregulation of fibronectin were involved in NNK-enhanced migration of gastric cancer cells. Finally, we found that silenced fibronectin expression level inhibited the migratory ability in AGS cells. Conclusions. NNK enhanced gastric cancer metastasis through alpha7-nAChR and fibronectin-one of the hallmarks of epithelial mesenchymal transition.
引用
收藏
页码：S580 / S588
页数：9
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